scholarly journals RADIOPROTECTIVE EFFECTS OF ALOE VERA ON HEPATOSOMATIC INDEX OF SWISS ALBINO MICE

Author(s):  
PRIYANKA DADUPANTHI

Objective: In the living organisms, deleterious effects produced by ionizing radiations. Human exposure to ionizing radiations increased enormously because of rapid technological advancements. There is a need to protect humans against such effects of ionizing radiation. Protection against the deleterious effects of ionizing radiations by radioprotectors was studied, which may be of great help for human application. Present study was conducted to evaluate the modulating efficacy of prolonged administration of Aloe vera extract against gamma irradiation-induced toxicity in mice. Methods: Animals were given Aloe vera leaf extract orally 1000 mg/kg body weight/d for 15 consecutive days before radiation exposure (0.5, 3 and 5.5 Gy gamma radiation). Results: Mice were autopsied at day ¼, 1, 3, 5, 10 and 20 after irradiation to evaluate the radio modulator effect in terms of the hepatosomatic index. Conclusion: Aloe vera extract has a beneficial protective effect against radiation-induced oxidative stress.

2018 ◽  
Vol 53 (4) ◽  
pp. 241-248 ◽  
Author(s):  
J.-L. Ravanat

During the last few decades, a considerable amount of work has been done to better assess the effects of ionizing radiation on living organisms. In particular a lot of attention has been focused on the consequences of modifications of the DNA macromolecule, the support of the genetic information. Detailed information is now available on the formation of radiation-induced DNA lesions at the physical, chemical and biological levels. Emphasis will be placed in this review article on the differences and similarities, in term of DNA lesions formation and outcome, between endogenous oxidative stress and ionizing radiation, both stresses that could produce oxidative DNA lesions through similar mechanistic pathways involving mostly reactive oxygen species. If the chemical nature of the generated lesions is similar, the differences in term of biological consequences could be attributed to their spatial distribution in genomic DNA, since ionizing radiations produce lesions in cluster. These clusters of lesions represent a challenge for the DNA repair machinery. In contrast, endogenous oxidative stress generates scattered lesions that could be repaired with a much higher efficacy and fidelity. Possible implication of the use of DNA damage and repair for human health purposes and radiological protection will be discussed.


1969 ◽  
Vol 3 (2) ◽  
pp. 350-355
Author(s):  
MEENA GUL ◽  
MUHAMMAD MAZHAR HUSSAIN ◽  
AYESHA BABER ◽  
AMJAD ZAMAN ◽  
MUSRAT ZAHRA

BACKGROUND: Managing diabetes is difficult due to the number of side effects associated with drugsused for its treatment. There it is a need of an hour to look for indigenous plants which are safe and costeffective. Present study was planned to determine the effect of Aloe vera whole leaf extract and/orRosiglitazone on plasma glucose, insulin and insulin resistance in type 2 diabetic Sprague-Dawley rats.DESIGN: Randomized control trailPLACE AND DURATION OF STUDY: This study was conducted from April 2009 to Oct 2010 at theDepartment of Physiology Army Medical College, Rawalpindi in collaboration with National Institute ofHealth (NIH) Islamabad.MATERIAL AND METHOD: Type 2 DM was induced in 60 healthy Sprague-Dawley rats by feedinghigh fat diet for 2 weeks and injecting a low dose (35mg/kg) of streptozotocin intra peritoneally. Type 2diabetic rats were randomly divided into four groups, each group having 15 rats and were labeled as diabeticgroup, Aloe vera group, rosiglitazone group and combined group. The diabetic group was injected normalsaline, Aloe vera group was treated with Aloe vera whole leaf extract in dose of 300mg/kg body weight,rosiglitazone group was given 5mg/kg body weight of rosiglitazone I/P and combined group diabetic ratswere treated with 150mg/kg body weight of Aloevera extract and 2.5mg/kg body weight of rosiglitazone(halfof their effective dose) for 21 days.RESULTS: A significant reduction (p<0.001) in plasma glucose (73%), insulin (32%) and TG/HDL ratio(81%) was analyzed in combined groupascompared to diabetic control group. \CONCLUSION: The maximum impact in lowering plasma glucose, insulin and TG/HDL ratio wasrecorded in combined group, followed by rosiglitazone group and then Aloevera group.KEYWORDS:T2DM. Aloe vera, insulin resistance


2017 ◽  
Vol 6 (2) ◽  
pp. 73-77
Author(s):  
Olubukola S. Olorunnisola ◽  
◽  
Adewale Adetutu ◽  
Abiodun O. Owoade ◽  
Babatunde T. Adesina ◽  
...  

Aim: Acute toxicity and protective effect of ethanol leaf extract of Rhus longipes Engl. against Paracetamol induced oxidative stress was investigated. The LD50 of the leaf extract was determined using up and down technique and the effect of 1/10th and 1/20th/ LD50 of the extract on antioxidants enzymes and non-enzymes were assessed in the serum and isolated liver of normal and Paracetamol intoxicated rats. Data obtained were analyzed by one-way analysis of variance (ANOVA) and Dunnett’s t-test was used as the test of significance. Values were considered significant at P value < 0.05. The results obtained indicated that LD50 of Rhus longipes Engl. leaf extract is greater than 5000 mg/kg /body weight. A significant (p<0.05) increase was observed in the level of hepatic (H) TBARs (81.97%), Catalase (38.42%) and serum (S) TBARs (164.44%) and catalase (64.72%) respectively but, a significant (P<0.05) decrease in hepatic activities of SOD, GPX, GR, vitamin C and E in paracetamol treated groups when compared with the serum and normal control group respectively. The extracts (250 and 500 mg/kg/body/weight) and the standard silymarin significantly (p<0.05) restored the derange antioxidants parameters to near normal in dose dependent manners. The activities of the extract at the highest concentration (500 mg/kg/b.wt) compared favourably with the standard drug. The results suggested that the leaf extract of Rhus longipes Engl. contain bioactive compounds which could protect against toxicity induced oxidative stress. The results of this study can be used as a basis for further investigations in the search for the bioactive principle.


2020 ◽  
Vol 31 (2) ◽  
pp. 106-109
Author(s):  
Oyedele Elliot Seyifunmi ◽  
Ayorinde Ajayi

AbstractIn this study, we attempt to verify the claim that the leaf-extract of Telfairia occidentalis can remedy oxidative damage condition as well as assess its phytochemical content. Fifteen male albino rats weighing 180 g to 240 g were randomly divided into three groups of five rats each. Group A was designated the control group while group B and C were both induced with 40 mg/kg body weight 2,4-dinitrophenyl hydrazine. Group C was subsequently treated with 200 mg/kg body weight of ethanol extract of T. occidentalis leaf for 21 days. At the end of the treatment, the animals were sacrificed, and serum of the samples were subjected to relevant tests. Result shows that the plant leaf contained saponin, tannins, alkaloids, flavonoids and phenols whereas, terpenes, steroids and anthraquinones were not detected. The serum enzymes alanine aminotransferase (ALT) and alkaline phosphatase (ALP) were significantly elevated from 17.43 u/L and 28.40 u/L to 21.60 u/L and 34.27 u/L respectively. These were significantly lowered in the group C to 18.37 u/L and 29.23 u/L respectively for ALT and ALP. Also, a significant lowering of superoxide dismutase (SOD) activity was observed in the treated group (54.33 u/mg) from 79.40 u/mg recorded in the intoxicated group. Similarly, a significant decrease in malondialdehyde was observed in the treated group (25.80 u/mg) relative to the intoxicated group (35.87 u/mg). Moreover, catalase activity in the treated group (7.43 u/mg) was significantly lower compared with the intoxicated group. Our observation confirmed that ethanolic leaf extract of T. occidentalis reversed the oxidative damage condition in albino rats. The result confirms the ethnomedicinal use of the plant in the management of oxidative stress related diseases.


2019 ◽  
Vol 6 (9) ◽  
pp. 3359-3367 ◽  
Author(s):  
Emmanuel Obasi ◽  
Kizito Iheanacho ◽  
Ngwu Nwachukwu ◽  
Nc Agha ◽  
Paul Chidoka Chikezie

Background: The present study evaluated the effect of phenolic aqueous leaf extract of Vitex doniana on body weight, serum glucose and oxidative stress parameters in diabetes mellitus (DM) rats. Methods: DM was induced in rats by intraperitoneal injection of 100 mg/kg alloxan monohydrate in phosphate buffered saline (PBS; pH = 7.4). A total of 36 adult male Wister albino rats were divided into 6 groups of 6 rats. The groups consist of normal untreated rats, untreated DM rats, DM rats treated with 500 mg/kg dimethylguanide (MetforminTM) and DM rats treated with 100, 200 and 400 mg/kg body weight of phenolic aqueous leaf extract of Vitex doniana. The rats were treated for 28 days. Serum glucose, malondialdehyde (MDA), glutathione (GSH) and ascorbic acid concentrations, and serum superoxide dismutase (SOD) and catalase (CAT) activities were measured using standard methods. The changes in body weight was also measured. Results: The results showed a significant reduction (p < 0.05) in serum glucose and MDA concentration, whereas serum SOD, CAT activities, as well as GSH and ascorbic acid concentration were significantly elevated (p < 0.05) in treated DM groups in a dose dependent manner. Conclusion: The results of the present study indicated that phenolic aqueous leaf extract of V. doniana promoted increased body weight, ameliorated DM and alleviated reduced antioxidant activities in alloxan-induced DM rats. Phenolic aqueous leaf extract of V. doniana could serve as a potential natural and safe remedy for the management of DM.  


2020 ◽  
Vol 24 (4) ◽  
pp. 314-321
Author(s):  
David Chibuike Ikwuka ◽  
◽  
Ed Nwobodo ◽  
Bond U. Anyaehie ◽  
Emmanuel I Umegbolu ◽  
...  

Introduction: In recent years, the growing research towards new drugs has been targeted on plant-based drugs, and Neem (Azadirachta indica) is one of the plants that have been extensively researched for its diverse medicinal properties. The study aimed to determine the effects of neem on the hematological parameters (total white blood cells, neutrophil, monocyte and eosinophil counts) and histology of some organs of rats. Methods: Fifteen healthy male Wister rats divided into control (Nm0) and experimental groups (Nm11 and Nm22). Control group 1 (Nm0) was given 100mg/200g body weight of normal saline orally twice daily; experimental group 2 (Nm11), 100mg/200g body weight neem extract twice daily for 11 days and experimental group 3 (Nm22), 100mg/200g neem leaf extract twice daily for 22 days. Total number of white blood cells (WBC), lymphocytes, neutrophils, monocytes and eosinophils, packed cell volumes (PCV) and histological changes in the spleen, liver and kidneys were evaluated. Results: There were no significant differences in mean values of the hematological parameters (total WBC; PCV; neutrophils, lymphocytes, monocytes and eosinophils). We observed the central vacuolation and accumulation of lymphocytes in the spleen, hypertrophy of the central vein in the liver and shrinking of the glomeruli and accumulation of the lymphocytes in the kidney using hematoxylin and eosin staining following prolonged administration of neem extract (Nm22). Conclusion: Prolonged administration of neem affected the histology of some organs of the rats more than the hematological parameters.


Author(s):  
Johnson Olaleye Oladele ◽  
Oyedotun Moses Oyeleke ◽  
Boyede Dele Olowookere ◽  
Oluwafeyisayo Doyinsola Babatope ◽  
Monisola Dorcas Olaniyan ◽  
...  

Abstract Renal diseases have been documented as one of the massive health challenges, ranked as the 12th most common cause of death globally. This study was carried out to assess the chemopreventive effects of Vernonia amydalina on nitrobenzene mediated renal damage in rats. Rats were exposed to 100 mg/kg body weight of nitrobenzene via oral administration and treated with 200 mg/kg body weight (BW) and 400 mg/kg BW of methanol leaf extract of Vernonia amydalina (MLVA) and Vitamin E for 14 consecutive days. Nitrobenzene significantly induced a renal injury with a significant increase in the serum levels of urea and creatinine with the concomitant altered serum electrolyte profile. Also, nitrobenzene mediated the oxidative stress and lipid peroxidation with a significant increase in the renal level of malondialdehyde (MDA), hydrogen peroxide (H2O2), with a concomitant decrease in the level of reduced glutathione (GSH), Catalase (CAT) and Superoxide dismutase (SOD). Furthermore, an inflammation was observed in the nitrobenzene-treated rats with the elevated level of nitric oxide (NO) and myeloperoxidase (MPO). However, the treatment with methanol leaf extract of Vernonia amydalina reversed all the nitrobenzene-associated renal damage, electrolyte imbalance, oxidative stress, lipid peroxidation, inflammation and altered antioxidant defence system. Taken together, methanol leaf extract of Vernonia amydalina offers protection which may be beneficial for the treatment and management of kidney diseases or other related disorders via enhancing the serum electrolyte homeostasis, protecting the structural integrity of the kidney, antioxidant, anti-inflammatory mechanisms.


2010 ◽  
Vol 25 (3) ◽  
pp. 186-191 ◽  
Author(s):  
Prashasnika Gehlot ◽  
Dhanraj Soyal ◽  
Pradeep Goyal

The radioprotective effect of the Aloe vera leaf extract was studied in Swiss albino mice against radiation-induced changes in the liver. The mice were treated with 1000 mg/kg of body weight orally, once a day for 15 consecutive days, before exposure to a single dose of gamma radiation (6 Gy), half an hour after the last administration. The irradiation of mice caused a significant elevation in lipid peroxidation followed by a decrease in glutathione, acid phosphatase and alkaline phosphatase. The treatment of mice before irradiation elevated the glutathione, acid phosphatase and alkaline phosphatase, and was accompanied by a decline in lipid peroxidation. Recovery and regeneration from radiation damage were faster in pretreated animals than the animals in the irradiation-only group. The data clearly indicate that the Aloe vera leaf extract significantly reduced the deleterious effects of radiation on the liver and it could be a useful agent in reducing the side effects of therapeutic radiation.


Author(s):  
Bhagwendra Prakash ◽  
Suresh Kumar Sabal ◽  
Rajbala Verma ◽  
John Pj ◽  
Inderpal Soni

Objective: The present study was designed to evaluate hepatotoxicity induced by sodium fluoride (NaF) in Swiss albino mice and amelioration by Ocimum sanctum Linn.Methods: Mice were divided into six groups, Group I received tap water, Group II received low dose of NaF (8 mg/L), Group III high dose of NaF (80 mg/L) in drinking water, Group IV tap water along with 250 mg/kg body weight/day leaf extract of O. sanctum Linn., Group V 8 mg/L NaF in drinking water and 250 mg/kg body weight leaf extract of O. sanctum Linn., and Group VI 80 mg/L NaF in drinking water along with leaf extract of O. sanctum Linn. 250 mg/kg body weight/day for 90 days. On the 91st day, the animals were autopsied and liver tissue samples were taken to assess histopathological changes and oxidative stress by estimating glutathione peroxidase, superoxide dismutase, and catalase.Results: A highly significant decrease in the activity of antioxidant enzymes occurred with the high dose (Group III). Hepatic histopathological architecture exhibited deformities, namely, ballooning, hypertrophy, hepatocellular necrosis, infiltration of mononuclear cells, deformed central vein, sinusoidal dilation, and binucleated cells. Low-dose group (Group II) showed a significant decrease in antioxidant enzyme levels as compared to control group, and histological sections of liver showed dilated sinusoids, infiltration of mononuclear cells, ballooning, and hypertrophy of hepatocytes. Groups IV and V showed no pathological features. Group VI showed less damage to the liver as compared to Group III.Conclusion: The results revealed that the administration of leaf extract of O. sanctum Linn. elicited protection against NaF-induced hepatotoxicity and oxidative stress. It may, therefore, be inferred that fluoride caused hepatotoxicity in Swiss albino mice at the tested dose levels can be ameliorated by O. sanctum Linn.


Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 816
Author(s):  
Xin-Ran Liu ◽  
Na Zhu ◽  
Yun-Tao Hao ◽  
Xiao-Chen Yu ◽  
Zhen Li ◽  
...  

Radiation therapy is widely used in the treatment of tumor diseases, but it can also cause serious damage to the body, so it is necessary to find effective nutritional supplements. The main purpose of this study is to evaluate the protective effect of whey hydrolysate peptides (WHPs) against 60Coγ radiation damage in mice and explore the mechanism. BALB/c mice were given WHPs by oral gavage administration for 14 days. Then, some mice underwent a 30-day survival test after 8 Gy radiation, and other mice received 3.5 Gy radiation to analyze the changes in body weight, hematology and bone marrow DNA after three and 14 days. In addition, through further analysis of the level of oxidative stress and intestinal barrier function, the possible mechanism of the radioprotective effect of WHPs was explored. The study found WHPs can prolong survival time, restore body weight, and increase the number of peripheral blood white blood cells and bone marrow DNA content in irradiated mice. In addition, WHPs can significantly improve the antioxidant capacity, inhibit pro-inflammatory cytokines and protect the intestinal barrier. These results indicate that WHPs have a certain radioprotective effect in mice, and the main mechanism is related to reducing oxidative damage.


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